Effect of methylene chain length of polycarbonate (PC) glycols on properties of PC-based polyurethanes

Machiko Sakai; Suguru Motokucho; Ken Kojio; Mutsuhisa Furukawa

Effect of methylene chain length of polycarbonate (PC) glycols on properties of PC-based polyurethanes

Machiko Sakai, Suguru Motokucho, Ken Kojio, Mutsuhisa Furukawa

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Polycarbonate-based polyurethane elastomers (PUEs) were prepared from poly(carbonate) glycol baring the number of methylene unit of 3, 4, 5 and 6. Aggregation structure and mechanical properties of these PUEs were investigated by differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXD), and tensile testing. The difference in temperature of the glass transition temperature of polyols (ΔT_g,polyols) and T_g,PUEs (ΔT_g) decreased with decreasing methylene chain length indicating the degree of microphase separation become stronger with decreasing methylene chain length. Also, Young's modulus increased with decreasing methylene chain length. Around the higher strain region in the stress-strain curve, the elongation-induced crystallization was suppressed for the PC-glycol-based polyurethane with even number of methylene chain length.

Original language	English
Title of host publication	Polymer Preprints, Japan - 55th SPSJ Annual Meeting
Pages	1063
Number of pages	1
Volume	55
Edition	1
Publication status	Published - 2006
Externally published	Yes
Event	55th SPSJ Annual Meeting - Nagoya, Japan Duration: May 24 2006 → May 26 2006

Other

Other	55th SPSJ Annual Meeting
Country/Territory	Japan
City	Nagoya
Period	5/24/06 → 5/26/06

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

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title = "Effect of methylene chain length of polycarbonate (PC) glycols on properties of PC-based polyurethanes",

abstract = "Polycarbonate-based polyurethane elastomers (PUEs) were prepared from poly(carbonate) glycol baring the number of methylene unit of 3, 4, 5 and 6. Aggregation structure and mechanical properties of these PUEs were investigated by differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXD), and tensile testing. The difference in temperature of the glass transition temperature of polyols (ΔTg,polyols) and Tg,PUEs (ΔTg) decreased with decreasing methylene chain length indicating the degree of microphase separation become stronger with decreasing methylene chain length. Also, Young's modulus increased with decreasing methylene chain length. Around the higher strain region in the stress-strain curve, the elongation-induced crystallization was suppressed for the PC-glycol-based polyurethane with even number of methylene chain length.",

author = "Machiko Sakai and Suguru Motokucho and Ken Kojio and Mutsuhisa Furukawa",

year = "2006",

language = "English",

volume = "55",

pages = "1063",

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edition = "1",

note = "55th SPSJ Annual Meeting ; Conference date: 24-05-2006 Through 26-05-2006",

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TY - GEN

T1 - Effect of methylene chain length of polycarbonate (PC) glycols on properties of PC-based polyurethanes

AU - Sakai, Machiko

AU - Motokucho, Suguru

AU - Kojio, Ken

AU - Furukawa, Mutsuhisa

PY - 2006

Y1 - 2006

N2 - Polycarbonate-based polyurethane elastomers (PUEs) were prepared from poly(carbonate) glycol baring the number of methylene unit of 3, 4, 5 and 6. Aggregation structure and mechanical properties of these PUEs were investigated by differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXD), and tensile testing. The difference in temperature of the glass transition temperature of polyols (ΔTg,polyols) and Tg,PUEs (ΔTg) decreased with decreasing methylene chain length indicating the degree of microphase separation become stronger with decreasing methylene chain length. Also, Young's modulus increased with decreasing methylene chain length. Around the higher strain region in the stress-strain curve, the elongation-induced crystallization was suppressed for the PC-glycol-based polyurethane with even number of methylene chain length.

AB - Polycarbonate-based polyurethane elastomers (PUEs) were prepared from poly(carbonate) glycol baring the number of methylene unit of 3, 4, 5 and 6. Aggregation structure and mechanical properties of these PUEs were investigated by differential scanning calorimetry (DSC), wide angle X-ray diffraction (WAXD), and tensile testing. The difference in temperature of the glass transition temperature of polyols (ΔTg,polyols) and Tg,PUEs (ΔTg) decreased with decreasing methylene chain length indicating the degree of microphase separation become stronger with decreasing methylene chain length. Also, Young's modulus increased with decreasing methylene chain length. Around the higher strain region in the stress-strain curve, the elongation-induced crystallization was suppressed for the PC-glycol-based polyurethane with even number of methylene chain length.

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M3 - Conference contribution

AN - SCOPUS:33749664281

VL - 55

SP - 1063

BT - Polymer Preprints, Japan - 55th SPSJ Annual Meeting

T2 - 55th SPSJ Annual Meeting

Y2 - 24 May 2006 through 26 May 2006

ER -

Effect of methylene chain length of polycarbonate (PC) glycols on properties of PC-based polyurethanes

Abstract

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